Webster's Catches Up

According to the news I heard as I was driving back to work after lunch, the phrase "fanboy" has finally made it into Webster's Dictionary--almost 90 years after the first printed references the researchers found from 1919. The interviewee said it is mostly "used in connection with comic books and sometimes movies." I guess they've never met science fiction fanboy geeks. In any case, I am dying to find out what it was first used in relationship to, if not comics and science fiction.